hwcontext_vulkan: dlopen libvulkan

[ffmpeg] / doc / encoders.texi

diff --git a/doc/encoders.texi b/doc/encoders.texi
index 0b1c69e982b7b467041b87d31363e48925878db3..2ba9938da2a26366cec6d857c2a39cbb7bb258b0 100644 (file)
--- a/doc/encoders.texi
+++ b/doc/encoders.texi
@@ -151,10 +151,9 @@ the undocumented RealAudio 3 (a.k.a. dnet).
 The @var{ac3} encoder uses floating-point math, while the @var{ac3_fixed}
 encoder only uses fixed-point integer math. This does not mean that one is
 always faster, just that one or the other may be better suited to a
-particular system. The floating-point encoder will generally produce better
-quality audio for a given bitrate. The @var{ac3_fixed} encoder is not the
-default codec for any of the output formats, so it must be specified explicitly
-using the option @code{-acodec ac3_fixed} in order to use it.
+particular system. The @var{ac3_fixed} encoder is not the default codec for
+any of the output formats, so it must be specified explicitly using the option
+@code{-acodec ac3_fixed} in order to use it.
 
 @subsection AC-3 Metadata
 
@@ -1269,6 +1268,48 @@ disabled
 A description of some of the currently available video encoders
 follows.
 
+@section a64_multi, a64_multi5
+
+A64 / Commodore 64 multicolor charset encoder. @code{a64_multi5} is extended with 5th color (colram).
+
+@section GIF
+
+GIF image/animation encoder.
+
+@subsection Options
+
+@table @option
+@item gifflags @var{integer}
+Sets the flags used for GIF encoding.
+
+@table @option
+@item offsetting
+Enables picture offsetting.
+
+Default is enabled.
+
+@item transdiff
+Enables transparency detection between frames.
+
+Default is enabled.
+
+@end table
+
+@item gifimage @var{integer}
+Enables encoding one full GIF image per frame, rather than an animated GIF.
+
+Default value is @option{0}.
+
+@item global_palette @var{integer}
+Writes a palette to the global GIF header where feasible.
+
+If disabled, every frame will always have a palette written, even if there
+is a global palette supplied.
+
+Default value is @option{1}.
+
+@end table
+
 @section Hap
 
 Vidvox Hap video encoder.
@@ -1685,6 +1726,17 @@ Enable interintra compound. Default is true.
 @item enable-smooth-interintra (@emph{boolean}) (Requires libaom >= v2.0.0)
 Enable smooth interintra mode. Default is true.
 
+@item aom-params
+Set libaom options using a list of @var{key}=@var{value} pairs separated
+by ":". For a list of supported options, see @command{aomenc --help} under the
+section "AV1 Specific Options".
+
+For example to specify libaom encoding options with @option{-aom-params}:
+
+@example
+ffmpeg -i input -c:v libaom-av1 -b:v 500K -aom-params tune=psnr:enable-tpl-model=1 output.mp4
+@end example
+
 @end table
 
 @section libsvtav1
@@ -2129,6 +2181,38 @@ midpoint is passed in rather than calculated for a specific clip or chunk.
 The valid range is [0, 10000]. 0 (default) uses standard VBR.
 @item enable-tpl @var{boolean}
 Enable temporal dependency model.
+@item ref-frame-config
+Using per-frame metadata, set members of the structure @code{vpx_svc_ref_frame_config_t} in @code{vpx/vp8cx.h} to fine-control referencing schemes and frame buffer management.
+@*Use a :-separated list of key=value pairs.
+For example,
+@example
+av_dict_set(&av_frame->metadata, "ref-frame-config", \
+"rfc_update_buffer_slot=7:rfc_lst_fb_idx=0:rfc_gld_fb_idx=1:rfc_alt_fb_idx=2:rfc_reference_last=0:rfc_reference_golden=0:rfc_reference_alt_ref=0");
+@end example
+@table @option
+@item rfc_update_buffer_slot
+Indicates the buffer slot number to update
+@item rfc_update_last
+Indicates whether to update the LAST frame
+@item rfc_update_golden
+Indicates whether to update GOLDEN frame
+@item rfc_update_alt_ref
+Indicates whether to update ALT_REF frame
+@item rfc_lst_fb_idx
+LAST frame buffer index
+@item rfc_gld_fb_idx
+GOLDEN frame buffer index
+@item rfc_alt_fb_idx
+ALT_REF frame buffer index
+@item rfc_reference_last
+Indicates whether to reference LAST frame
+@item rfc_reference_golden
+Indicates whether to reference GOLDEN frame
+@item rfc_reference_alt_ref
+Indicates whether to reference ALT_REF frame
+@item rfc_reference_duration
+Indicates frame duration
+@end table
 @end table
 
 @end table
@@ -2225,9 +2309,7 @@ pixel formats as input instead of YUV.
 @subsection Supported Pixel Formats
 
 x264 supports 8- to 10-bit color spaces. The exact bit depth is controlled at
-x264's configure time. FFmpeg only supports one bit depth in one particular
-build. In other words, it is not possible to build one FFmpeg with multiple
-versions of x264 with different bit depths.
+x264's configure time.
 
 @subsection Options